Thread-parter for looms.



No. 630,236. Patented Aug. I, 1899.

C. L. JOY.

THREAD PARTER FOR LOOMS.

(Application filed May 16, 1899.)

No Model.)

UNITED STATES PATENT OFFICE.

CALVIN L. J OY, OF LOlVELL, MASSACHUSETTS, ASSIGNOR TO THE DRAPER COMPANY, OF PORTLAND, MAINE, AND HOPEDALE, MASSACHUSETTS.

THREAD-PARTER FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 630,236, dated August 1, 1899. Application filed May 16, 1899. Serial No. 717,053. (No model.)

To (tZZ whom it may concern:

Be it known that I, CALVIN L. J OY, of Lowell, county of Middlesex, State of Massachusetts, have invented an Improvement in Thread-Parters for Looms, of which the following description, in connection with the accompanying drawings, is a specification, like letters and figures on the drawings representing like parts.

This invention relates more particularly to so-called automatic looms, wherein the filling is changed automatically upon failure or more or less partial exhaustion of the prior supply of filling in the shuttle, a loom of such type being shown in United States Patent No. 529,940, dated November 27, 1894, the transfer of a fresh supply of filling leaving an end of filling outside of the selvage of the cloth. In United States Patent No. 585,465, dated June 29, 1897, a thread-parter is shown for cutting off such filling ends, the parting device being mounted on the temple, and in the present embodiment of my invention I have also shown the thread-parter on the temple, but so arranged that its action is limited to each time a transfer of filling is efiected, thus greatly reducing the wear, while providing for the operation of the device wherever needed.

Figure l is a sectional view of a suflicient portion of a loom to be understood, taken between its sides, with one embodiment of my invention applied thereto. Fig. 2 is an enlarged inner side elevation of the parting means shown in Fig. 1 and locked in normal or inoperative position. Fig. 3 is a top or plan View thereof; and Fig. 4 is a sectional View taken on the line a: LU, Fig. 3, showing the thread-parter in position to be operated.

The loom-frame A lay A breast-beam A filling-feeder F, and controlling or operating rock-shaft d therefor, Fig. 1, are and may be all as in said Patent No. 529,940, while the temple-stand A, slide-bar 13, having the pod B slotted at a to receive a steel blade at, the cap E the heel B attached to the pod, the slotted ear I) on the shank B, and the thread parter or cutter O, inserted in the slotted portion of the pod and car, are and may be allas in thePatent No. 585,465, referred to. As in said patent, the front end of the parter C is slotted at 2 to straddle the blade 0. and present two arins c 0 each havinga hook 0 a spring dnormally tending to project the hooked end through the slot at and elevate it, as in Fig. 4. A stud d extended laterally from the bar B, receives the coil of the spring d, one end, 3, of which bears against a part of the bar, while the other free end engages a projection c on the depending heel c of the parter O, the heel being thickened at its lower end at c for a purpose to be described. Stops 5 5 on the parter limit its forward movement, and a shoe 6 slides and rocks on the under side of the ear I), and on a stud-like extension 7 of one of the lugs 5 is mounteda pawl 19, held by a spring 5 in engagement with a ratchet-wheel r, rotatable on the stud 61 each outward movement of the parter O rotating the ratchet 1" one tooth. A second ratchet 1" is rotatably mounted on the stud d against a collar 8 thereon, Fig. 3, a spring 5- acting as a friction device to prevent overrunning of the ratchets, theinner one, 0", having cooperating with it a holding-pawl p, mounted on a detent D, pivoted on the ear I) at CV and having a notch 01 to engage the extension 71 and retain the parter O retracted against the action of the spring d, as shown in Fig. 2, a spring 5 acting to keep the pawl 19 in engagement with its ratchet.

I have shown the ratchets as having the same number of teeth; but the ratchet 1" is the smaller in diameter, every fourth tooth of the ratchet 'r, as herein shown, being cut down to the root-line of the teeth of ratchet r, as shown at 9, Fig. 2, so that whenever the actuating-pawl p engages a deep tooth it will also engage and rotate the ratchet 1" one tooth in the direction of arrow 10, Fig. 4, the pawl being broad enough to extend across both ratchets.

The normal position of the parts is shown in Figs. 1 and 2, and in Fig. 1 I have shown a releasing device for the detent D, said device consisting of an arm (Z 9, secured to the controlling-shaft at, operation of the latter to eifect a change of filling raising the arm 01 to engage and lift the detent D to thereby release the stud 7 of the parter C from the notch (1 the spring (1 immediately projecting the parter into the position shown in Fig. 4, with the thickened portion a of its heel in advance of the temple-heel 13 As the lay beats up it will first engage the heel c of the parter, moving it rearwardly and at the same time depressing its hooked end 0 so that'the filling end will be caught and drawn across the blade at to sever it, as in Patent No. 585,465, before the heel B is engaged by the lay. When the lay moves back, the spring 61 returns the parter O to the position shown in Fig. 4, turning the ratchet '1' one tooth, the lifting of the detent D when released bringing its pawl 13 into engagement with a tooth of ratchet r to maintain the detent inoperative. The detent will be so held until after a certain number of successive operations of the parter O the ratchet 7" will have been turned far enough to permit its actuatingpawl 19 to also engage the ratchet r and rotate it far enough to disengage the detent, so that it returns to operative position, the stud 7 entering the notch d of the detent at the next back stroke of the parter, and the latter will be maintained inoperative until the releasing device d is again actuated to withdraw the detent.

By permitting the parter to operate several times Whenever liberated, as described, it has ample opportunity to engage and part the filling end should it fail to work properly the first time.

My invention is not restricted to the construction and arrangement herein shown, for, so far as I am aware, it is broadly new to restore automatically a threadparter to the control of a detent after the parter has been operated successivelya plurality of times, to be maintained inoperative thereafter until release of the detent.

Having described my invention, What I claim as new, and desire to secure by Letters Patent, is

1. A loom-temple provided with a thread parter, actuating means therefor, a detent to normally maintain said thread-parter inoperative, a releasing device for the detent, and means governed by a plurality of successive operations of the thread-parter to restore the same to the control of the detent.

2. A reciprocating temple provided with a thread-parter, actuating means therefor to part the filling end in advance of the reciprocation of the temple a detent to maintain the thread-parter inoperative, a releasing device for the detent, and means governed by a plurality of successive operations of the thread-parter to restore the same to the control of the detent.

A loom-temple provided with a relatively-movable thread parter having a heel, means to engage the heel and actuate the parter, a detent to maintain the latter inoperative, a releasing device for the detent, and means controlled by a plurality of successive operations of the thread-parter to restore the ,same to the control of the detent.

4. A temple having a relatively-movable thread-parter, a spring to move the parter for ward, means to move ,it in the opposite direction, a detent to retain said parter retracted against the stress of the spring, a releasing device for the detent, and means actuated at each operation of the thread-parter to restore the latter to the control of the detent after a plurality of successive operations.

5. A loom-temple provided with a relatively-movable thread-parter, means to actuate it, a detent to retain the parter inoperative and provided with a holding-pawl, a cooperating ratchet, a coaxial, adjacent settingratchet having some of its teeth deeper than others, an actuating-pawl therefor moved at each operation of the thread-parter to rotate the setting-ratchet step by step, engagement of said pawl with a deep tooth rotating both ratchets to permit the detent to again control the thread-parter after a plurality of operations thereof, and a releasing device for the detent.

6. A loom-temple provided with a threadparter, actuating means therefor, a detent to normally maintain said thread-parter inoperative, a releasing device for the detent, and means, including a holding-pawl and ratchet for and to retain the detent inoperative when released, and a cooperating setting pawl and ratchet rotated step by step at each operation of the thread-parter, to eifect the return of the detent into position to control the threadparter after a predetermined number of op erations of the latter.

7. A loom-temple provided with a thread* parter, actuating means therefor, a detent to maintain said thread-parter inoperative, a releasing device for the detent, and means to retard the control of the parter by said detent for a predetermined number of successive operations of the former.

8. A loom-temple provided with a threadparter, actuating means therefor, a detent to maintain said thread-parter in operative, a re* leasing device for the detent, and means governed by the actuation of the thread-parter to retard the control thereof by the detent for a predetermined number of successive operations of said parter.

9. In a loom provided with filling-supplying mechanism, a controller therefor, a threadparter, actuating means therefor, a detent to normallymaintain said parter inoperative, a releasing device for the detent, operated by or through said controller, and means to retard the control of the thread-parter by the detent for a predetermined number of successive operations of the former.

10. In a loom provided with filling-supplying mechanism, a controller therefor, the lay, a thread-parter having a heel adapted when in operative position to be engaged by the lay to operate the parter, adetent to normally maintain said parter inoperative, a releasing device for the detent, operated by or through the said controller upon a change of filling, and means to restore the thread-parter to the control of the detent after a predetermined number of operations of said parter by the lay. 11. In a loom provided with filling-supplyin g mechanism, a controlling rock-shaft therefor, a temple provided with a movable threadparter having a hooked end and a heel to be engaged and moved by the lay, a detent to normally maintain the heel in inoperative position, a releasing-arm for said detent mounted on the controlling rock-shaft, and means governed by the actuation of the threadparter to retard the control of the threadparter by the detent for a predetermined number of operations of said parter.

12. In a loom, a temple provided with a spring-controlled movable thread-parter having a hooked end to engage the filling, means to actuate the said parter in opposition to its spring, a detent to normally maintain the parter inoperative, a releasing device for the detent, and means to restore the parter to the control of the detent, said means, including difierential ratchets, a pawl cooperating with one to hold the detent inoperative when released, and an actuating-pawl to engage and rotate said ratchets in unison after a predetermined number of actuations of the parter,

to thereby disengage the detent from the con trol of its holding-pawl and permit its return to operative position.

13. A loom-temple having a blade and pro vided with a cooperating sliding thread-cutter, means actuated bya plurality of successive operations of the cutter to lock it from further movement, and a device to release the cutter from the control of said means and permit it to be operated.

14. A loom-temple provided with a threadparting device having a heel adapted to be engaged and actuated by a moving part of the loom, means actuated by a plurality of successive operations of the parting device to retain said parting device in inoperative position, and an independent device to release the parting device and permit subsequent actuation thereof. a,

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CALVIN L. JOY.

Witnesses:

CHAS. H. WoRoEsTER, O. E. LITTLEFIELD. 

